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Finding the Fourth Proportional to 224,079, 335,999.70 and 66,285.60

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Solution

The fourth proportional to 224,079, 335,999.70 and 66,285.60 is: 99,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,079 : 335,999.70 = 66,285.60 : x
  2. Step 2: Convert to fraction form
    224,079/335,999.70 = 66,285.60/x
  3. Step 3: Cross multiply
    224,079x = 335,999.70 × 66,285.60
  4. Step 4: Simplify right side
    224,079x = 22,271,941,714.32
  5. Step 5: Solve for x
    x = 22,271,941,714.32/224,079
  6. Step 6: Final answer
    x = 99,393.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.